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4.1.0-pre / 20xx-xx-xx

  • Fixed issue #893 - inline: false as alias to inline: 'none'.
  • Fixed issue #890 - adds toggle to disable empty tokens removal.
  • Fixed issue #886 - better multi pseudo class / element merging.

4.0.7 / 2017-02-14

  • Fixed issue #891 - merging vendor-prefixed pseudo-classes.

4.0.6 / 2017-02-10

  • Fixed issue #885 - unquoting font-feature-settings.

4.0.5 / 2017-02-07

  • Fixed issue #884 - handling absolute paths on Windows.
  • Fixed issue #881 - incorrect require arity.
  • Fixed issue #880 - incorrect token type identification.

4.0.4 / 2017-02-04

  • Fixed issue #879 - incorrect handling of spaces in paths.
  • Fixed issue #878 - invalid double backslash tokenization.

4.0.3 / 2017-01-30

  • Fixed issue #875 - invalid traversing in semantic merging.

4.0.2 / 2017-01-26

  • Fixed issue #874 - regression in at-rule tokenization.

4.0.1 / 2017-01-25

  • Fixed issue #866 - edge case in inline option.
  • Fixed issue #867 - skip optimizing variable values.
  • Fixed issue #868 - accept absolute paths in input hash.
  • Fixed issue #872 - edge case in CSS tokenization.

4.0.0 / 2017-01-23

  • Adds more detailed error & warning messages on top of the new tokenizer.
  • Disables restructuring optimizations by default until optimized in #533.
  • Fixes a bug ignoring incorrect properties in complex restructuring.
  • Requires Node.js 4.0+ to run.
  • Removes benchmark API option as total time is always reported under stats property.
  • Removes debug API switch as stats are always gathered and available under stats property.
  • Replaces the old tokenizer with a new one which doesn't use any escaping.
  • Replaces the old @import inlining with one on top of the new tokenizer.
  • Re-enables background-(clip|origin|size) merging with background shorthand.
  • Simplifies URL rebasing with a single rebaseTo option in API or inferred from --output in CLI.
  • Splits inliner option into inlineRequest and inlineTimeout.
  • Fixed issue #209 - adds output formatting via format flag.
  • Fixed issue #290 - removes aggressive merging.
  • Fixed issue #432 - adds URLs normalization.
  • Fixed issue #460 - unescaped semicolon in selector.
  • Fixed issue #657 - adds property name validation.
  • Fixed issue #685 - adds lowercasing hex colors optimization.
  • Fixed issue #686 - adds rounding precision for all units.
  • Fixed issue #703 - changes default IE compatibility to 10+.
  • Fixed issue #731 - adds granular control over level 2 optimizations.
  • Fixed issue #739 - error when a closing brace is missing.
  • Fixed issue #750 - allows width overriding.
  • Fixed issue #756 - adds disabling font-weight optimizations.
  • Fixed issue #758 - ignores rules with empty selector.
  • Fixed issue #767 - disables remote @import inlining by default.
  • Fixed issue #773 - adds reordering based on selector specificity.
  • Fixed issue #785 - adds @font-face de-duplication.
  • Fixed issue #791 - resolves imports in-memory if possible.
  • Fixed issue #796 - semantic merging for @media blocks.
  • Fixed issue #801 - smarter @import inlining.
  • Fixed issue #806 - skip optimizing variable properties.
  • Fixed issue #817 - makes off disable rounding.
  • Fixed issue #818 - disables px rounding by default.
  • Fixed issue #828 - -chrome- hack support.
  • Fixed issue #829 - adds more strict selector merging rules.
  • Fixed issue #834 - adds extra line break in nested blocks.
  • Fixed issue #836 - enables level 0 optimizations.
  • Fixed issue #839 - allows URIs in import inlining rules.
  • Fixed issue #840 - allows input source map as map object.
  • Fixed issue #843 - regression in selector handling.
  • Fixed issue #845 - web compatibility of 4.0 branch.
  • Fixed issue #847 - regression in handling invalid selectors.
  • Fixed issue #849 - disables inlining protocol-less resources.
  • Fixed issue #856 - allows minify to return a promise.
  • Fixed issue #857 - normalizes CleanCSS API interface.
  • Fixed issue #863 - adds transform callback for custom optimizations.

3.4.24 / 2017-01-20

  • Fixed issue #859 - avoid -webkit-border-radius optimizations.

3.4.23 / 2016-12-17

  • Fixed issue #844 - regression in property values extraction.

3.4.22 / 2016-12-12

  • Fixed issue #841 - disabled importing and files passed as array.
  • Ignores @import at-rules if appearing after any non-@import rules.

3.4.21 / 2016-11-16

  • Fixed issue #821 - reducing non-adjacent rules.
  • Fixed issue #830 - reordering border-* properties.
  • Fixed issue #833 - moving @media queries.

3.4.20 / 2016-09-26

  • Fixed issue #814 - :selection rule merging.

3.4.19 / 2016-07-25

  • Fixed issue #795 - !important and override compacting.

3.4.18 / 2016-06-15

  • Fixed issue #787 - regression in processing data URIs.

3.4.17 / 2016-06-04

  • Fixed issue #783 - regression in processing data URIs.

3.4.16 / 2016-06-02

  • Fixed issue #781 - regression in override compacting.
  • Fixed issue #782 - regression in processing data URIs.

3.4.15 / 2016-06-01

  • Fixed issue #776 - edge case in quoted data URIs.
  • Fixed issue #779 - merging background-(position|size).
  • Fixed issue #780 - space after inlined variables.

3.4.14 / 2016-05-31

  • Fixed issue #751 - stringifying CSS variables.
  • Fixed issue #763 - data URI SVG and quoting.
  • Fixed issue #765 - two values of border-radius.
  • Fixed issue #768 - invalid border-radius property.

3.4.13 / 2016-05-23

  • Fixed issue #734 - Node.js 6.x support.

3.4.12 / 2016-04-09

  • Fixed issue #734 - --root option edge case.
  • Fixed issue #758 - treats empty rule as unmergeable.

3.4.11 / 2016-04-01

  • Fixed issue #738 - edge case in comment processing.
  • Fixed issue #741 - HTTP proxy with HTTPS inlining.
  • Fixed issue #743 - background shorthand and source maps.
  • Fixed issue #745 - matching mixed case !important.

3.4.10 / 2016-02-29

  • Fixed issue #735 - whitespace removal with escaped chars.

3.4.9 / 2016-01-03

  • Sped up merging by body advanced optimization.
  • Fixed issue #693 - restructuring edge case.
  • Fixed issue #711 - border fuzzy matching.
  • Fixed issue #714 - stringifying property level at rules.
  • Fixed issue #715 - stack too deep in comment scan.

3.4.8 / 2015-11-13

  • Fixed issue #676 - fuzzy matching unqoted data URIs.

3.4.7 / 2015-11-10

  • Fixed issue #692 - edge case in URL quoting.
  • Fixed issue #695 - shorthand overriding edge case.
  • Fixed issue #699 - IE9 transparent hack.
  • Fixed issue #701 - url quoting with hash arguments.

3.4.6 / 2015-10-14

  • Fixed issue #679 - wrong rebasing of remote URLs.

3.4.5 / 2015-09-28

  • Fixed issue #681 - property inheritance & restructuring.
  • Fixed issue #675 - overriding with !important.

3.4.4 / 2015-09-21

  • Fixed issue #626 - edge case in import rebasing.
  • Fixed issue #674 - adjacent merging order.

3.4.3 / 2015-09-15

  • Fixed issue #668 - node v4 path.join.
  • Fixed issue #669 - adjacent overriding with !important.

3.4.2 / 2015-09-14

  • Fixed issue #598 - restructuring border properties.
  • Fixed issue #654 - disables length optimizations.
  • Fixed issue #655 - shorthands override merging.
  • Fixed issue #660 - !important token overriding.
  • Fixed issue #662 - !important selector reducing.
  • Fixed issue #667 - rebasing remote URLs.

3.4.1 / 2015-08-27

  • Fixed issue #652 - order of restoring and removing tokens.

3.4.0 / 2015-08-27

  • Adds an option for a fine-grained @import control.
  • Adds unit compatibility switches to disable length optimizations.
  • Adds inferring proxy settings from HTTP_PROXY environment variable.
  • Adds support for Polymer / Web Components special selectors.
  • Adds support for Polymer mixins.
  • Adds testing source maps in batch mode.
  • Unifies wrappers for simple & advanced optimizations.
  • Fixed issue #596 - support for !ie IE<8 hack.
  • Fixed issue #599 - support for inlined source maps.
  • Fixed issue #607 - adds better rule reordering.
  • Fixed issue #612 - adds HTTP proxy support.
  • Fixed issue #618 - adds safer function validation.
  • Fixed issue #625 - adds length unit optimizations.
  • Fixed issue #632 - adds disabling remote imports.
  • Fixed issue #635 - adds safer 0% optimizations.
  • Fixed issue #644 - adds time unit optimizations.
  • Fixed issue #645 - adds bottom to top media merging.
  • Fixed issue #648 - adds property level at-rule support.

3.3.10 / 2015-08-27

  • Adds better comments + keepBreaks handling.
  • Adds better text normalizing in source maps mode.
  • Fixes non-adjacent optimizations for source maps.
  • Fixes removing unused items.
  • Improves outline break up with source maps.
  • Refixed issue #629 - source maps & background shorthands.

3.3.9 / 2015-08-09

  • Fixed issue #640 - URI processing regression.

3.3.8 / 2015-08-06

  • Fixed issue #629 - source maps & background shorthands.
  • Fixed issue #630 - vendor prefixed flex optimizations.
  • Fixed issue #633 - handling data URI with brackets.
  • Fixed issue #634 - merging :placeholder selectors.

3.3.7 / 2015-07-29

  • Fixed issue #616 - ordering in restructuring.

3.3.6 / 2015-07-14

  • Fixed issue #620 - bold style in font shorthands.

3.3.5 / 2015-07-01

  • Fixed issue #608 - custom URI protocols handling.

3.3.4 / 2015-06-24

  • Fixed issue #610 - border:inherit restoring.
  • Fixed issue #611 - edge case in quote stripping.

3.3.3 / 2015-06-16

  • Fixed issue #603 - IE suffix hack defaults to on.

3.3.2 / 2015-06-14

  • Fixed issue #595 - more relaxed block matching.
  • Fixed issue #601 - percentage minifying inside flex.
  • Fixed issue #602 - backslash IE hacks after a space.

3.3.1 / 2015-06-02

  • Fixed issue #590 - edge case in @import processing.

3.3.0 / 2015-05-31

  • Cleans up url rebase code getting rid of unnecessary state.
  • Cleans up tokenizer code getting rid of unnecessary state.
  • Moves source maps tracker into lib/source-maps/track.
  • Moves tokenizer code into lib/tokenizer.
  • Moves URL scanner into lib/urls/reduce (was named incorrectly before).
  • Moves URL rebasing & rewriting into lib/urls.
  • Fixed issue #375 - unit compatibility switches.
  • Fixed issue #436 - refactors URI rewriting.
  • Fixed issue #448 - rebasing no protocol URIs.
  • Fixed issue #517 - turning off color optimizations.
  • Fixed issue #542 - space after closing brace in IE.
  • Fixed issue #562 - optimizing invalid color values.
  • Fixed issue #563 - background:inherit restoring.
  • Fixed issue #570 - rebasing "no-url()" imports.
  • Fixed issue #574 - rewriting internal URLs.
  • Fixed issue #575 - missing directory as a target.
  • Fixed issue #577 - background-clip into shorthand.
  • Fixed issue #579 - background-origin into shorthand.
  • Fixed issue #580 - mixed @import processing.
  • Fixed issue #582 - overriding with prefixed values.
  • Fixed issue #583 - URL quoting for SVG data.
  • Fixed issue #587 - too aggressive border reordering.

3.2.11 / 2015-05-31

  • Fixed issue #563 - background:inherit restoring.
  • Fixed issue #582 - overriding with prefixed values.
  • Fixed issue #583 - URL quoting for SVG data.
  • Fixed issue #587 - too aggressive border reordering.

3.2.10 / 2015-05-14

  • Fixed issue #572 - empty elements removal.

3.2.9 / 2015-05-08

  • Fixed issue #567 - merging colors as functions.

3.2.8 / 2015-05-04

  • Fixed issue #561 - restructuring special selectors.

3.2.7 / 2015-05-03

  • Fixed issue #551 - edge case in restructuring.
  • Fixed issue #553 - another style of SVG fallback.
  • Fixed issue #558 - units in same selector merging.

3.2.6 / 2015-04-28

  • Fixed issue #550 - proper contentSources tracking.
  • Fixed issue #556 - regression in IE backslash hacks.

3.2.5 / 2015-04-25

  • Fixed issue #543 - better "comment in body" handling.
  • Fixed issue #548 - regression in font minifying.
  • Fixed issue #549 - special comments in source maps.

3.2.4 / 2015-04-24

  • Fixed issue #544 - regression in same value merging.
  • Fixed issue #546 - IE<11 calc() issue.

3.2.3 / 2015-04-22

  • Fixed issue #541 - outline-style:auto in shorthand.

3.2.2 / 2015-04-21

  • Fixed issue #537 - regression in simple optimizer.

3.2.1 / 2015-04-20

  • Fixed issue #534 - wrong @font-face stringifying.

3.2.0 / 2015-04-19

  • Bumps commander to 2.8.x.
  • Fixes remote asset rebasing when passing data as a hash.
  • Improves path resolution inside source maps.
  • Makes root option implicitely default to process.cwd().
  • Fixed issue #371 - background fallback with none.
  • Fixed issue #376 - option to disable 0[unit] -> 0.
  • Fixed issue #396 - better input source maps tracking.
  • Fixed issue #397 - support for source map sources.
  • Fixed issue #399 - support compacting with source maps.
  • Fixed issue #429 - unifies data tokenization.
  • Fixed issue #446 - list-style fuzzy matching.
  • Fixed issue #468 - bumps source-map to 0.4.x.
  • Fixed issue #480 - extracting uppercase property names.
  • Fixed issue #487 - source map paths under Windows.
  • Fixed issue #490 - vendor prefixed multivalue background.
  • Fixed issue #500 - merging duplicate adjacent properties.
  • Fixed issue #504 - keeping url() quotes.
  • Fixed issue #507 - merging longhands into many shorthands.
  • Fixed issue #508 - removing duplicate media queries.
  • Fixed issue #521 - unit optimizations inside calc().
  • Fixed issue #524 - timeouts in @import inlining.
  • Fixed issue #526 - shorthand overriding into a function.
  • Fixed issue #528 - better support for IE<9 hacks.
  • Fixed issue #529 - wrong font weight minification.

3.1.9 / 2015-04-04

  • Fixes issue #511 - ) advanced processing.

3.1.8 / 2015-03-17

  • Fixes issue #498 - reordering and flexbox.
  • Fixes issue #499 - too aggressive - removal.

3.1.7 / 2015-03-16

  • Backports fix to #480 - reordering and uppercase properties.
  • Fixes issue #496 - space after bracket removal.

3.1.6 / 2015-03-12

  • Fixes issue #489 - AlphaImageLoader IE filter.

3.1.5 / 2015-03-06

  • Fixes issue #483 - property order in restructuring.

3.1.4 / 2015-03-04

  • Fixes issue #472 - broken function minification.
  • Fixes issue #477 - @imports order in restructuring.
  • Fixes issue #478 - ultimate fix to brace whitespace.

3.1.3 / 2015-03-03

  • Fixes issue #464 - data URI with quoted braces.
  • Fixes issue #475 - whitespace after closing brace.

3.1.2 / 2015-03-01

  • Refixed issue #471 - correct order after restructuring.
  • Fixes issue #466 - rebuilding background shorthand.
  • Fixes issue #462 - escaped apostrophes in selectors.

3.1.1 / 2015-02-27

  • Fixed issue #469 - extracting broken property.
  • Fixed issue #470 - negative padding removal.
  • Fixed issue #471 - correct order after restructuring.

3.1.0 / 2015-02-26

  • Adds 0deg to 0 minification where possible.
  • Adds better non-adjacent selector merging when body is the same.
  • Adds official support for node.js 0.12.
  • Adds official support for io.js 1.0.
  • Adds restructuring optimizations to reorganize selectors, which vastly improves minification.
  • Fixed issue #158 - adds body-based selectors reduction.
  • Fixed issue #182 - removing space after closing brace.
  • Fixed issue #204 - @media merging.
  • Fixed issue #351 - remote @imports after content.
  • Fixed issue #357 - non-standard but valid URLs.
  • Fixed issue #416 - accepts hash as minify argument.
  • Fixed issue #419 - multiple input source maps.
  • Fixed issue #435 - background-clip in shorthand.
  • Fixed issue #439 - background-origin in shorthand.
  • Fixed issue #442 - space before adjacent nav.
  • Fixed issue #445 - regression issue in url processor.
  • Fixed issue #449 - warns of missing close braces.
  • Fixed issue #463 - relative remote @import URLs.

3.0.10 / 2015-02-07

  • Fixed issue #453 - double background-repeat.
  • Fixed issue #455 - property extracting regression.

3.0.9 / 2015-02-04

  • Fixed issue #452 - regression in advanced merging.

3.0.8 / 2015-01-31

  • Fixed issue #447 - background-color in shorthands.
  • Fixed issue #450 - name to hex color converting.

3.0.7 / 2015-01-22

  • Fixed issue #441 - hex to name color converting.

3.0.6 / 2015-01-20

  • Refixed issue #414 - source maps position fallback.

3.0.5 / 2015-01-18

  • Fixed issue #414 - source maps position fallback.
  • Fixed issue #433 - meging !important in shorthands.

3.0.4 / 2015-01-11

  • Fixed issue #314 - spaces inside calc.

3.0.3 / 2015-01-07

  • Just a version bump as npm incorrectly things 2.2.23 is the latest one.

3.0.2 / 2015-01-04

  • Fixed issue #422 - handling calc as a unit.

3.0.1 / 2014-12-19

  • Fixed issue #410 - advanced merging and comments.
  • Fixed issue #411 - properties and important comments.

3.0.0 / 2014-12-18

  • Adds more granular control over compatibility settings.
  • Adds support for @counter-style at-rule.
  • Adds --source-map/sourceMap switch for building input's source map.
  • Adds --skip-shorthand-compacting/shorthandComacting option for disabling shorthand compacting.
  • Allows target option to be a path to a folder instead of a file.
  • Allows disabling rounding precision. By @superlukas.
  • Breaks 2.x compatibility for using CleanCSS as a function.
  • Changes minify method output to handle multiple outputs.
  • Reworks minification to tokenize first then minify. See changes.
  • Removes support for node.js 0.8.x.
  • Renames noAdvanced option into advanced.
  • Renames noAggressiveMerging option into aggressiveMerging.
  • Renames noRebase option into rebase.
  • Speeds up advanced processing by shortening optimize loop.
  • Fixed issue #125 - source maps!
  • Fixed issue #344 - merging background-size into shorthand.
  • Fixed issue #352 - honors rebasing in imported stylesheets.
  • Fixed issue #360 - adds 7 extra CSS colors.
  • Fixed issue #363 - rem units overriding px.
  • Fixed issue #373 - proper background shorthand merging.
  • Fixed issue #395 - unescaped brackets in data URIs.
  • Fixed issue #398 - restoring important comments.
  • Fixed issue #400 - API to accept an array of filenames.
  • Fixed issue #403 - tracking input files in source maps.
  • Fixed issue #404 - no state sharing in API.
  • Fixed issue #405 - disables default background-size merging.
  • Refixed issue #304 - background-position merging.

2.2.22 / 2014-12-13

  • Backports fix to issue #304 - background-position merging.

2.2.21 / 2014-12-10

  • Backports fix to issue #373 - background shorthand merging.

2.2.20 / 2014-12-02

  • Backports fix to issue #390 - pseudo-class merging.

2.2.19 / 2014-11-20

  • Fixed issue #385 - edge cases in processing cut off data.

2.2.18 / 2014-11-17

  • Fixed issue #383 - rounding fractions once again.

2.2.17 / 2014-11-09

  • Fixed issue #380 - rounding fractions to a whole number.

2.2.16 / 2014-09-16

  • Fixed issue #359 - handling escaped double backslash.
  • Fixed issue #358 - property merging in compatibility mode.
  • Fixed issue #356 - preserving *+html hack.
  • Fixed issue #354 - !important overriding in shorthands.

2.2.15 / 2014-09-01

  • Fixed issue #343 - too aggressive rgba/hsla minification.
  • Fixed issue #345 - URL rebasing for document relative ones.
  • Fixed issue #346 - overriding !important by !important.
  • Fixed issue #350 - edge cases in @import processing.

2.2.14 / 2014-08-25

  • Makes multival operations idempotent.
  • Fixed issue #339 - skips invalid properties.
  • Fixed issue #341 - ensure output is shorter than input.

2.2.13 / 2014-08-12

  • Fixed issue #337 - handling component importance.

2.2.12 / 2014-08-02

  • Fixed issue with tokenizer removing first selector after an unknown @ rule.
  • Fixed issue #329 - font shorthands incorrectly processed.
  • Fixed issue #332 - background shorthand with colors.
  • Refixed issue #325 - invalid charset declarations.

2.2.11 / 2014-07-28

  • Fixed issue #326 - background-size regression.

2.2.10 / 2014-07-27

  • Improved performance of advanced mode validators.
  • Fixed issue #307 - background-color in multiple backgrounds.
  • Fixed issue #322 - adds background-size support.
  • Fixed issue #323 - stripping variable references.
  • Fixed issue #325 - removing invalid @charset declarations.

2.2.9 / 2014-07-23

  • Adds background normalization according to W3C spec.
  • Fixed issue #316 - incorrect background processing.

2.2.8 / 2014-07-14

  • Fixed issue #313 - processing comment marks in URLs.
  • Fixed issue #315 - rgba/hsla -> transparent in gradients.

2.2.7 / 2014-07-10

  • Fixed issue #304 - merging multiple backgrounds.
  • Fixed issue #312 - merging with mixed repeat.

2.2.6 / 2014-07-05

  • Adds faster quote matching in QuoteScanner.
  • Improves QuoteScanner to handle comments correctly.
  • Fixed issue #308 - parsing comments in quoted URLs.
  • Fixed issue #311 - leading/trailing decimal points.

2.2.5 / 2014-06-29

  • Adds removing extra spaces around / in border-radius.
  • Adds replacing same horizontal & vertical value in border-radius.
  • Fixed issue #305 - allows width keywords in border-width.

2.2.4 / 2014-06-27

  • Fixed issue #301 - proper border-radius processing.
  • Fixed issue #303 - correctly preserves viewport units.

2.2.3 / 2014-06-24

  • Fixed issue #302 - handling of outline-style: auto.

2.2.2 / 2014-06-18

  • Fixed issue #297 - box-shadow zeros minification.

2.2.1 / 2014-06-14

  • Fixes new property optimizer for 'none' values.
  • Fixed issue #294 - space after rgba/hsla in IE<=11.

2.2.0 / 2014-06-11

  • Adds a better algorithm for quotation marks' removal.
  • Adds a better non-adjacent optimizer compatible with the upcoming new property optimizer.
  • Adds minifying remote files directly from CLI.
  • Adds --rounding-precision to control rounding precision.
  • Moves quotation matching into a QuoteScanner class.
  • Adds npm run browserify for creating embeddable version of clean-css.
  • Fixed list-style-* advanced processing.
  • Fixed issue #134 - merges properties into shorthand form.
  • Fixed issue #164 - removes default values if not needed.
  • Fixed issue #168 - adds better property merging algorithm.
  • Fixed issue #173 - merges same properties if grouped.
  • Fixed issue #184 - uses !important for optimization opportunities.
  • Fixed issue #190 - uses shorthand to override another shorthand.
  • Fixed issue #197 - adds borders merging by understandability.
  • Fixed issue #210 - adds temporary workaround for aggressive merging.
  • Fixed issue #246 - removes IE hacks when not in compatibility mode.
  • Fixed issue #247 - removes deprecated selectorsMergeMode switch.
  • Refixed issue #250 - based on new quotation marks removal.
  • Fixed issue #257 - turns rgba/hsla to transparent if possible.
  • Fixed issue #265 - adds support for multiple input files.
  • Fixed issue #275 - handling transform properties.
  • Fixed issue #276 - corrects unicode handling.
  • Fixed issue #288 - adds smarter expression parsing.
  • Fixed issue #293 - handles escaped @ symbols in class names and IDs.

2.1.8 / 2014-03-28

  • Fixed issue #267 - incorrect non-adjacent selector merging.

2.1.7 / 2014-03-24

  • Fixed issue #264 - @import statements inside comments.

2.1.6 / 2014-03-10

  • Fixed issue #258 - wrong @import handling in EmptyRemoval.

2.1.5 / 2014-03-07

  • Fixed issue #255 - incorrect processing of a trailing -0.

2.1.4 / 2014-03-01

  • Fixed issue #250 - correctly handle JSON data in quotations.

2.1.3 / 2014-02-26

  • Fixed issue #248 - incorrect merging for vendor selectors.

2.1.2 / 2014-02-25

  • Fixed issue #245 - incorrect handling of backslash IE hack.

2.1.1 / 2014-02-18

  • Adds faster selectors processing in advanced optimizer.
  • Fixed issue #241 - incorrect handling of :not() selectors.

2.1.0 / 2014-02-13

  • Adds an optional callback to minify method.
  • Deprecates --selectors-merge-mode / selectorsMergeMode in favor to --compatibility / compatibility.
  • Fixes debug mode stats for stylesheets using @import statements.
  • Skips empty removal if advanced processing is enabled.
  • Fixed issue #85 - resolving protocol @imports.
  • Fixed issue #160 - re-runs optimizer until a clean pass.
  • Fixed issue #161 - improves tokenizer performance.
  • Fixed issue #163 - round pixels to 2nd decimal place.
  • Fixed issue #165 - extra space after trailing parenthesis.
  • Fixed issue #186 - strip unit from 0rem.
  • Fixed issue #207 - bug in parsing protocol @imports.
  • Fixed issue #213 - faster rgb to hex transforms.
  • Fixed issue #215 - leading zeros in numerical values.
  • Fixed issue #217 - whitespace inside attribute selectors and URLs.
  • Fixed issue #218 - @import statements cleanup.
  • Fixed issue #220 - selector between comments.
  • Fixed issue #223 - two-pass adjacent selectors merging.
  • Fixed issue #226 - don't minify border:none to border:0.
  • Fixed issue #229 - improved processing of fraction numbers.
  • Fixed issue #230 - better handling of zero values.
  • Fixed issue #235 - IE7 compatibility mode.
  • Fixed issue #236 - incorrect rebasing with nested imports.

2.0.8 / 2014-02-07

  • Fixed issue #232 - edge case in non-adjacent selectors merging.

2.0.7 / 2014-01-16

  • Fixed issue #208 - don't swallow @page and @viewport.

2.0.6 / 2014-01-04

  • Fixed issue #198 - process comments and @imports correctly.
  • Fixed issue #205 - freeze on broken @import declaration.

2.0.5 / 2014-01-03

  • Fixed issue #199 - keep line breaks with no advanced optimizations.
  • Fixed issue #203 - Buffer as a first argument to minify method.

2.0.4 / 2013-12-19

  • Fixed issue #193 - HSL color space normalization.

2.0.3 / 2013-12-18

  • Fixed issue #191 - leading numbers in font/animation names.
  • Fixed issue #192 - many @imports inside a comment.

2.0.2 / 2013-11-18

  • Fixed issue #177 - process broken content correctly.

2.0.1 / 2013-11-14

  • Fixed issue #176 - hangs on undefined keyword.

2.0.0 / 2013-11-04

  • Adds simplified and more advanced text escaping / restoring via EscapeStore class.
  • Adds simplified and much faster empty elements removal.
  • Adds missing @import processing to our benchmark (run via npm run bench).
  • Adds CSS tokenizer which will make it possible to optimize content by reordering and/or merging selectors.
  • Adds basic optimizer removing duplicate selectors from a list.
  • Adds merging duplicate properties within a single selector's body.
  • Adds merging adjacent selectors within a scope (single and multiple ones).
  • Changes behavior of --keep-line-breaks/keepBreaks option to keep breaks after trailing braces only.
  • Makes all multiple selectors ordered alphabetically (aids merging).
  • Adds property overriding so more coarse properties override more granular ones.
  • Adds reducing non-adjacent selectors.
  • Adds --skip-advanced/noAdvanced switch to disable advanced optimizations.
  • Adds reducing non-adjacent selectors when overridden by more complex selectors.
  • Fixed issue #138 - makes CleanCSS interface OO.
  • Fixed issue #139 - consistent error & warning handling.
  • Fixed issue #145 - debug mode in library too.
  • Fixed issue #157 - gets rid of removeEmpty option.
  • Fixed issue #159 - escaped quotes inside content.
  • Fixed issue #162 - strip quotes from Base64 encoded URLs.
  • Fixed issue #166 - debug formatting in CLI
  • Fixed issue #167 - background:transparent minification.

1.1.7 / 2013-10-28

  • Fixed issue #156 - @imports inside comments.

1.1.6 / 2013-10-26

  • Fixed issue #155 - broken irregular CSS content.

1.1.5 / 2013-10-24

  • Fixed issue #153 - keepSpecialComments 0/1 as a string.

1.1.4 / 2013-10-23

  • Fixed issue #152 - adds an option to disable rebasing.

1.1.3 / 2013-10-04

  • Fixed issue #150 - minifying background:none.

1.1.2 / 2013-09-29

  • Fixed issue #149 - shorthand font property.

1.1.1 / 2013-09-07

  • Fixed issue #144 - skip URLs rebasing by default.

1.1.0 / 2013-09-06

  • Renamed lib's debug option to benchmark when doing per-minification benchmarking.
  • Added simplified comments processing & imports.
  • Fixed issue #43 - --debug switch for minification stats.
  • Fixed issue #65 - full color name / hex shortening.
  • Fixed issue #84 - support for @import with media queries.
  • Fixed issue #124 - raise error on broken imports.
  • Fixed issue #126 - proper CSS expressions handling.
  • Fixed issue #129 - rebasing imported URLs.
  • Fixed issue #130 - better code modularity.
  • Fixed issue #135 - require node.js 0.8+.

1.0.12 / 2013-07-19

  • Fixed issue #121 - ability to skip @import processing.

1.0.11 / 2013-07-08

  • Fixed issue #117 - line break escaping in comments.

1.0.10 / 2013-06-13

  • Fixed issue #114 - comments in imported stylesheets.

1.0.9 / 2013-06-11

  • Fixed issue #113 - @import in comments.

1.0.8 / 2013-06-10

  • Fixed issue #112 - reducing box-shadow zeros.

1.0.7 / 2013-06-05

  • Support for @import URLs starting with //. By @petetak.

1.0.6 / 2013-06-04

  • Fixed issue #110 - data URIs in URLs.

1.0.5 / 2013-05-26

  • Fixed issue #107 - data URIs in imported stylesheets.

1.0.4 / 2013-05-23

  • Rewrite relative URLs in imported stylesheets. By @bluej100.

1.0.3 / 2013-05-20

  • Support alternative @import syntax with file name not wrapped inside url() statement. By @bluej100.

1.0.2 / 2013-04-29

  • Fixed issue #97 - --remove-empty & FontAwesome.

1.0.1 / 2013-04-08

  • Do not pick up bench and test while building npm package. By @sindresorhus.

1.0.0 / 2013-03-30

  • Fixed issue #2 - resolving @import rules.
  • Fixed issue #44 - examples in --help.
  • Fixed issue #46 - preserving special characters in URLs and attributes.
  • Fixed issue #80 - quotation in multi line strings.
  • Fixed issue #83 - HSL to hex color conversions.
  • Fixed issue #86 - broken @charset replacing.
  • Fixed issue #88 - removes space in ! important.
  • Fixed issue #92 - uppercase hex to short versions.

0.10.2 / 2013-03-19

  • Fixed issue #79 - node.js 0.10.x compatibility.

0.10.1 / 2013-02-14

  • Fixed issue #66 - line breaks without extra spaces should be handled correctly.

0.10.0 / 2013-02-09

  • Switched from optimist to commander for CLI processing.
  • Changed long options from --removeempty to --remove-empty and from --keeplinebreaks to --keep-line-breaks.
  • Fixed performance issue with replacing multiple @charset declarations and issue with line break after @charset when using keepLineBreaks option. By @rrjaime.
  • Removed Makefile in favor to npm run commands (e.g. make check -> npm run check).
  • Fixed issue #47 - commandline issues on Windows.
  • Fixed issue #49 - remove empty selectors from media query.
  • Fixed issue #52 - strip fraction zeros if not needed.
  • Fixed issue #58 - remove colon where possible.
  • Fixed issue #59 - content property handling.

0.9.1 / 2012-12-19

  • Fixed issue #37 - converting white and other colors in class names (reported by @malgorithms).

0.9.0 / 2012-12-15

  • Added stripping quotation from font names (if possible).
  • Added stripping quotation from @keyframes declaration, animation and animation-name property.
  • Added stripping quotations from attributes' value (e.g. [data-target='x']).
  • Added better hex->name and name->hex color shortening.
  • Added font: normal and font: bold shortening the same way as font-weight is.
  • Refactored shorthand selectors and added border-radius, border-style and border-color shortening.
  • Added margin, padding and border-width shortening.
  • Added removing line break after commas.
  • Fixed removing whitespace inside media query definition.
  • Added removing line breaks after a comma, so all declarations are one-liners now.
  • Speed optimizations (~10% despite many new features).
  • Added JSHint validation rules via make check.

0.8.3 / 2012-11-29

  • Fixed HSL/HSLA colors processing.

0.8.2 / 2012-10-31

  • Fixed shortening hex colors and their relation to hashes in URLs.
  • Cleanup by @XhmikosR.

0.8.1 / 2012-10-28

  • Added better zeros processing for rect(...) syntax (clip property).

0.8.0 / 2012-10-21

  • Added removing URLs quotation if possible.
  • Rewrote breaks processing.
  • Added keepBreaks/-b option to keep line breaks in the minimized file.
  • Reformatted lib/clean.js so it's easier to follow the rules.
  • Minimized test data is now minimized with line breaks so it's easier to compare the changes line by line.

0.7.0 / 2012-10-14

  • Added stripping special comments to CLI (--s0 and --s1 options).
  • Added stripping special comments to programmatic interface (keepSpecialComments option).

0.6.0 / 2012-08-05

  • Full Windows support with tests (./test.bat).

0.5.0 / 2012-08-02

  • Made path to vows local.
  • Explicit node.js 0.6 requirement.

0.4.2 / 2012-06-28

  • Updated binary -v option (version).
  • Updated binary to output help when no options given (but not in piped mode).
  • Added binary tests.

0.4.1 / 2012-06-10

  • Fixed stateless mode where calling CleanCSS#process directly was giving errors (reported by @facelessuser).

0.4.0 / 2012-06-04

  • Speed improvements up to 4x thanks to the rewrite of comments and CSS' content processing.
  • Stripping empty CSS tags is now optional (see bin/cleancss for details).
  • Improved debugging mode (see test/bench.js)
  • Added make bench for a one-pass benchmark.

0.3.3 / 2012-05-27

  • Fixed tests, package.json for development, and regex for removing empty declarations (thanks to @vvo).

0.3.2 / 2012-01-17

  • Fixed output method under node.js 0.6 which incorrectly tried to close process.stdout.

0.3.1 / 2011-12-16

  • Fixed cleaning up 0 0 0 0 expressions.

0.3.0 / 2011-11-29

  • Clean-css requires node.js 0.4.0+ to run.
  • Removed node.js's 0.2.x 'sys' package dependency (thanks to @jmalonzo for a patch).

0.2.6 / 2011-11-27

  • Fixed expanding + signs in calc() when mixed up with adjacent + selector.

0.2.5 / 2011-11-27

  • Fixed issue with cleaning up spaces inside calc/-moz-calc declarations (thanks to @cvan for reporting it).
  • Fixed converting #f00 to red in borders and gradients.

0.2.4 / 2011-05-25

  • Fixed problem with expanding none to 0 in partial/full background declarations.
  • Fixed including clean-css library from binary (global to local).

0.2.3 / 2011-04-18

  • Fixed problem with optimizing IE filters.

0.2.2 / 2011-04-17

  • Fixed problem with space before color in border property.

0.2.1 / 2011-03-19

  • Added stripping space before !important keyword.
  • Updated repository location and author information in package.json.

0.2.0 / 2011-03-02

  • Added options parsing via optimist.
  • Changed code inclusion (thus the version bump).

0.1.0 / 2011-02-27

  • First version of clean-css library.
  • Implemented all basic CSS transformations.